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Qwen3.5 Plus 2026-04-20 vs Beam 1.0 501B A23B (high)

The average score is effectively tied at 6.1 vs 6.1. Qwen3.5 Plus 2026-04-20 has the lower benchmark cost at $0.216 vs $0.674. Beam 1.0 501B A23B (high) is faster at 9.03s vs 18.49s, with pass rates of 44.9% vs 59.4%.

Last updated at: 2026-10-17

Compared models

Rank
#270
Total Output Tokens
69,664
Response Time (avg)
18.49s
Total Cost
$0.216
Rank
#266
Total Output Tokens
147,207
Response Time (avg)
9.03s
Total Cost
$0.674
Recommended model Qwen3.5 Plus 2026-04-20

It has the best score here (6.1), while costing about 3.1x less than Beam 1.0 501B A23B (high).

Detailed comparison

Metric Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 none Release: 2026-04-20 Beam 1.0 501B A23B Beam 1.0 501B A23B high Release: 2026-10-17
Score 6.1 6.1
Rank #270 #266
Reliability 9.8 10.0
Consistency 8.4 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 44.9% 59.4%
Flaky tests 5 5
Total Runs 69 69
Cost per result 2.816 6.126
Total Cost $0.216 $0.674
Input Price $0.300 / 1M $1.000 / 1M
Output Price $1.800 / 1M $3.000 / 1M
Cache Read Price N/A $0.100 / 1M
Cache Write Price $0.375 / 1M N/A
Total Input Tokens 299,984 232,218
Output Tokens 69,664 4,944
Reasoning Tokens 0 142,263
Response Time (avg) 18.49s 9.03s
Response Time (max) 206.05s 36.04s
Response Time (total) 425.33s 207.67s
Parameters ~397B total (~17B active) 501B total (23B active)
Availability Closed Open source

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#270 Qwen3.5 Plus 2026-04-20

none
Cost
$0.008
Time
77.0s
Tokens
4,369 tok

#266 Beam 1.0 501B A23B

high
Cost
$0.008
Time
15.6s
Tokens
6,162 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-04-20 3.9 7.8 11.1% 1 1.69s 7,913 480 0
Beam 1.0 501B A23B 8.4 7.4 88.9% 1 21.05s 7,800 559 44,608

Quick Compare

Switch Comparison Pair

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